What's the best a) residue-free shampoo and, b) dread wax?

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What's the best a) residue-free shampoo and, b) dread wax?
Dreadlocks: Help me.
I'm currently in the process of giving my boyfriend dreadlocks. I've read a lot of mixed reviews on using dread wax/gel. Thoughts on it? And if you have used it, what brands?
Dread Wax: Myths and Facts
Myth: Dread wax speeds up the dreading process
Fact: When you put wax on your dreads it restricts the movement of your hair. Dreadlocks are formed on all people and all in all hair types when the individual hairs knot up. With less friction because of the wax the hair is not able to knot up like it should and takes longer to mature
Myth: Wax washes right out
Fact: Wax is not water soluble so it is actually quite difficult to wash out of your hair. Have you ever put that sculpting wax or gel in your hair to make it hold or spike out? Remember how hard you had to scrub and how many times you have to wash your hair just to get it out? Well dread wax is not much different from that stuff and unlike untangled hair you don't really have the ability to scrub at the hairs on the inside of your dreads.
If you can't wash the wax out it just builds up and eventually leads to dread rot. Not fun.
Myth: Using wax makes the dreading process easier
Fact: Dreads are pretty easy all on their own. They don't need products or much maintenance at all. applying wax to ever dread on your head daily or even just weekly takes up a lot of time that would be better spent on... well really anything else.
Questions about natural dreadlocks?
dreads are coming in nicely wax should be here by thursday latest really excited (:
gahhh i love my dreads so much i can't till the wax gets here